Answer this question truthfully
### Question: What causes Raynaud's phenomenon?
### Response: Raynaud's phenomenon can be associated with other conditions. This is called secondary Raynaud's phenomenon. Most people with the condition are over age 30.
Common causes are:
Diseases of the arteries, such as atherosclerosis and Buerger's disease, which is associated with smoking Drugs that cause narrowing of arteries, such as amphetamines, certain types of beta-blockers, some cancer drugs, ergot compounds, and methysergide Arthritis and autoimmune conditions, such as scleroderma, Sjogren syndrome, rheumatoid arthritis, andsystemic lupus erythematosus Repeated injury, particularly from vibrations such as those caused by typing or playing the piano Smoking Frostbite Thoracic outlet syndrome